Southwest Gas Holdings, Inc. (SWX) Insider Trading & SEC Filings

Updated Jul 16, 2026 · Last SEC filing 2026-05-13

Southwest Gas Holdings, Inc. (SWX) has filed 2 SEC Form 4 insider transactions in the last 90 days, with the most recent on 2026-05-13. 2 Form 8-K material event filings were reported by SWX in the last 90 days. InsiderAlpha tracks every SWX SEC filing — Form 4, Form 144, and 8-K — in real time, including Rule 10b5-1 plan detection.

About Southwest Gas Holdings, Inc. (SWX)

SEC CIK	0001692115

90-Day SEC Filing Activity

Form 4 filings (90d)	2
Form 8-K filings (90d)	2
Latest Form 4 filing	2026-05-13

Recent SWX Insider Transactions (Form 4)

Date	Insider	Role	Transaction	Shares	Price	Value	Filing
2026-05-07	Carson Molly R.	Director	A — Grant or award	1.2K	$0.00	—	SEC
2026-05-07	Kim Leezie	Director	A — Grant or award	1.2K	$0.00	—	SEC
2026-02-27	Forsberg Justin S	SVP/Chief Financial Officer	F — Tax withholding / forfeiture	520	$80.02	$42K	SEC
2026-02-27	Brown Justin L	President/Southwest Gas Corp.	F — Tax withholding / forfeiture	6.8K	$80.02	$547K	SEC
2026-02-27	Williams Julie M.	SVP/Cont. Improvement and Opt.	F — Tax withholding / forfeiture	3.5K	$80.02	$278K	SEC
2026-02-27	Gabe Randall P.	SVP/Chief Administrative OFC	F — Tax withholding / forfeiture	2.2K	$80.02	$174K	SEC
2026-02-27	Haller Karen S	President and CEO	F — Tax withholding / forfeiture	13.1K	$80.02	$1.05M	SEC
2026-02-27	Timperley Amy L.	SVP/Chief Reg. & Public Aff.	F — Tax withholding / forfeiture	1.2K	$80.02	$95K	SEC
2026-02-27	Mazzeo Catherine M	SVP/Chief Legal/Comp. Officer	F — Tax withholding / forfeiture	544	$80.02	$44K	SEC
2026-02-27	Brown Justin L	President/Southwest Gas Corp.	F — Tax withholding / forfeiture	3.2K	$87.60	$281K	SEC
2026-02-22	Brown Justin L	President/Southwest Gas Corp.	A — Grant or award	8.4K	$0.00	—	SEC
2026-02-19	Lewis-Raymond Jane	Director	A — Grant or award	1.7K	$0.00	—	SEC
2026-02-19	Brown Justin L	President/Southwest Gas Corp.	A — Grant or award	17.4K	$0.00	—	SEC
2026-02-19	Timperley Amy L.	SVP/Chief Reg. & Public Aff.	A — Grant or award	2.8K	$0.00	—	SEC
2026-02-19	Evans Andrew W	Director	A — Grant or award	1.7K	$0.00	—	SEC

All transactions sourced from SEC EDGAR Form 4 filings for Southwest Gas Holdings, Inc. (SWX). Updated in real time as new filings are submitted to the SEC.

Most-Active SWX Insiders — Last 90 Days

Insider	Form 4 filings	Total transaction value
Carson Molly R.	1	—
Kim Leezie	1	—

Recent SWX Form 8-K Material Events

2026-05-11 — Item 5.07 [SEC]
2026-05-05 — Item 2.02, 9.01 [SEC]
2026-02-25 — Item 5.02 · Leadership · mixed [SEC]
Karen S. Haller resigned as President, CEO, and Director of Southwest Gas Holdings, effective May 8, 2026, with a planned transition to an advisory role through year-end 2026. Justin Lee Brown was appointed as her successor, with a compensation package including $900,000 base sal
2026-02-25 — Item 2.02, 9.01 · Earnings · neutral [SEC]
Southwest Gas Holdings released summary financial information for Q4 2025 and full-year 2025 operating performance on February 25, 2026. This is a routine quarterly earnings disclosure furnished under Item 2.02, with the actual financial details contained in the attached press re

Recent Insider Filings

2026-05-13 — Carson Molly R. (Director)
2026-05-13 — Kim Leezie (Director)
2026-03-04 — Haller Karen S (President and CEO)
2026-03-04 — Timperley Amy L. (SVP/Chief Reg. & Public Aff.)
2026-03-04 — Williams Julie M. (SVP/Cont. Improvement and Opt.)

Form 4 Transaction Code Reference

SEC Form 4 transactions are reported with a one-letter code indicating the type of transaction. Common codes you'll see in SWX insider filings:

P	Open-market purchase by the insider
S	Open-market sale by the insider
A	Grant, award, or other acquisition from the issuer
M	Exercise or conversion of derivative security (e.g. options)
F	Payment of exercise price or tax liability via share withholding
G	Bona-fide gift of securities
D	Disposition to the issuer (e.g. share buyback participation)
J	Other acquisition or disposition
X	Exercise of in-the-money or at-the-money derivative security
C	Conversion of derivative security
V	Transaction voluntarily reported earlier than required

SWX Insider Trading — FAQ

What is the latest insider trade for SWX?: Southwest Gas Holdings, Inc. (SWX) had 2 insider filings in the last 90 days, with the most recent on 2026-05-13. InsiderAlpha tracks every Form 4, 10-K, 10-Q, and 8-K filing in real time.
How many insiders are buying SWX stock?: 0 insider purchases of SWX were filed in the last 90 days.
How many insiders are selling SWX stock?: 0 insider sales of SWX were filed in the last 90 days.
Where can I see SWX SEC filings (Form 4, 10-K, 10-Q, 8-K)?: InsiderAlpha aggregates every SWX SEC filing — Form 4 insider transactions, 10-K and 10-Q quarterly reports, and 8-K material event disclosures — in one timeline.

Learn More

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